I tried using Census+ on a high population server. It had gotten down to the point of it having to search for Level 85, by race, by class, by name. I think it is missing groups of people whose names start with H, J, K, L, M, N, Q, V, W, X, Z if it has to go this deep into the scan.

The chat echo showed the following... (This happened for multiple races and classes when it got down to this level of specificity).